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. 2016 Feb 23;11(2):e0150157. doi: 10.1371/journal.pone.0150157

Table 4. Symptoms and treatment.

Probable PD Definitive PD PD Net p
Total 850 57 907
n (%) n (%) n (%)
QS4X1: Lump or bump under skin of non-erect penis 0.86
 No 635 (74.7) 42 (73.7) 677 (74.6)
 Yes 215 (25.3) 15 (26.3) 230 (25.4)
QS4X2: Unusual firmness or hardened tissue under non-erect penis <0.0001
 No 734 (86.4) 37 (64.9) 771 (85.0)
 Yes 116 (13.6) 20 (35.1) 136 (15.0)
QS4X3: Lump/bump, firmness/hardness affecting shape of erect penis <0.0001
 No 758 (89.2) 29 (50.9) 787 (86.8)
 Yes 92 (10.8) 28 (49.1) 120 (13.2)
QS4X4: Development of a new or significant curve or bend of erect penis <0.0001
 No 597 (70.2) 24 (42.1) 621 (68.5)
 Yes 253 (29.8) 33 (57.9) 286 (31.5)
QS5X1: Indentation on one or both sides of erect penis <0.0001
 No 739 (86.9) 36 (63.2) 775 (85.5)
 Yes 111 (13.1) 21 (36.8) 132 (14.5)
QS5X2: Noticeable narrowing of erect penis 0.22
 No 697 (82.0) 43 (75.4) 740 (81.6)
 Yes 153 (18.0) 14 (24.6) 167 (18.4)
QS5X3: Erect penis folds during intercourse 0.4
 No 496 (58.4) 30 (52.6) 526 (58.0)
 Yes 354 (41.6) 27 (47.4) 381 (42.0)
Current PD symptoms <0.0001
 No 6 (0.7) 8 (14.0) 14 (1.5)
 Yes 844 (99.3) 49 (86.0) 893 (98.5)
Ever had PD treatment <0.0001
 No 821 (96.6) 46 (80.7) 867 (95.6)
 Yes 29 (3.4) 11 (19.3) 40 (4.4)
QS6X1: Surgery for PD treatment 0.001
 No 822 (96.7) 49 (86.0) 871 (96.0)
 Yes 28 (3.3) 8 (14.0) 36 (4.0)
QS6X2: Injections for PD treatment <0.0001
 No 810 (95.3) 43 (75.4) 853 (94.0)
 Yes 40 (4.7) 14 (24.6) 54 (6.0)